The biggest added feature is the GPS navigation support available through the optional GPS box which is sold seperately. The X355NAV includes a native universal DVD player which supports DVD, MP4(AVI/DIVX/3.X/5.X), VCD, JPG, SVCD, WMA, MWV, and CD formats. It includes a front panel USB input and SD Card slot, High power 4Ch Digital Output Amplifier, 3 Pre-outs(front,rear and sub) including Subwoofer output, Backup Camera Input (HTC31/32 sold separately), and an optional iPOD input which can also be purchased seperately. The X355NAV also supports digital album preview, or JPEG image display with a browser, slide show, zoom, and pan set of functions. The device includes additional features such as a built-in AM/FM Radio with 30 presets (that has auto scan, and store functions), multi-zone support (NTSC/PAL), power activation on Brake-On Function, and an included remote control. The face plate is detachable as well for an added security to discourage thieves. The XOVision X355NAV has an MSRP of $299.99 and no listed release date.